Side bearing for railway-cars.



`41. F. o'coNN'oR. SIDE BEARING FOR RAILWAY CARS.

ATION FILED SEPT-123.19m.

Patented Apr. 15,1919.

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` @MED :STATES JOHN F. ocoNNoR, or CHICAGO, ILLINOIS, AssIGivontro WILLIAM n.' iviii\ri-iit, or ciiiizr,

NEW YORK.V

" sinn BEARiivG ron, RAILWAYjCA'R'S;

Specification of Letters Patent.

Patented Apr. 15, 1919.

Application iled September 18, 1918. Serial No. 254,573.

To all whom t may concern:

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Side Bearings for Railway-Cars, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in side bearings for railway cars.

The object of the invention is to provide a simple and ecient side bearing having a self-centering anti-friction roller, In the -drawings forming a part of this specification, Figure 1 is a longitudinal vertical section of a side bearing and immediately adjacent parts of a railroad car embodying my invention. Fig. 2 is a cross-section taken on line 2-2 of Fig. 1. Referring to the drawing, the numeral 3 indicates the body bolster of a railway car and 4 its truck bolster. Secured to one of the bolsters-preferably the body bolster S-is a housing castingsometimes called base casting, 5,- open at its lower end 6 and provided with the flanges 7-7 suitably perforated as at 8 for the passage of the rivets 9, by means of which it is secured to the bolster. Mounted in the housing casting' is an anti-friction roller 10 of polygonal shape having curved anti-friction bearing faces 11-11 and being of substantially uniform vertical dimension in all positions of rotation. v The face 12 of the opposed bolster-as, for instance, the lower bolster-is borne against by the antifriction roller when the side bearing is in action. The housing member is provided on either side with the longitudinally extending recesses 13 to receive the ends 14-14 of a toothed axle 15, which extends through the longitudinal opening 17 provided in the anti-friction roller. An opening 18 is provided in the housing member for the insertion of the axle through the roller and into its position in the housing member. The opening 17 of th-e roller is of a general clover-leaf shape, each wall 180 opposite the adjacent apex 19 of the roller being provided with the teeth 20 adapted to interengage with those of the axle 15 and the lower walls 21, forming the recesses 13 in thehousing member, are similarly toothed to intermesh with the toothed axle. The inner walls of the housing member are curved to substantially conform with the ad- ]acent face of the roller when it is rotated to the end of the housing member, the position of the roller in the housing member, when rotated to one end, beingv indicated in Fig. l 'by the dotted line shown at 22. The feature of the supportingvpinion or axle 15, geared with the internal teeth 20 on the roller or rocker and with the toothed rack 2l provided upon the side walls of the housing member, positively centers the roller when it is disengaged from the opposed bearing plate provided by the bolster l as gravity brings the roller to its normal position, as it is shown in Fig. 1 of the drawing. Qn movement of the roller in either direction within the housing member, the pinion moves with the roller and in engagement with the racks 15 provided in the side walls of the housing member and with the teeth of the roller, preventing slipping of the roller and insuring its regular movement between the two bolsters of a car.

I claim:

l. In a side bearing for railway cars a housing member adapted for attachment to a bolster, an opposed bolster, a rocker mounted in the housing member and a pinion associated with the rocker, the said pinion being geared to the rocker and to the housing member.

2. In a side bearing for railway cars, in combination, a housing member, a rocker mounted therein and a pinion, the rocker having a longitudinal perforation with toothed walls, the housing member having a toothed rack, the pinionpbeing provided with teeth engaging the rack and inter-meshing with the teeth on the rocker.

3. In a side bearing for railway cars, in combination, a housing member, a polygonal rocker mounted therein, a toothed pinion extending through the rocker, the said pinion being geared to the rocker and to the housing member.

4.111 a side bearing for railway ears, a having a tooth-ed rack and the pinion interhousing member, a polygonal rocker mountmeshing with said rack and. with the teeth ed thereinsmperffomtion extendingthrough of`the, -roeker; y i 10 saidrookeEtheMaHSfof seid.lo,erfr'imtionfbeey Inzwitness that? I claim thefforegoing I 5 ing toothed opposite the adjacent apexl ofl have hereunto subscribed my name this 29th thee rockenl la.: toothed.. pinion extendedi dayofAuggst, `l,9,18. Y I throu'gli" tliefrooker; the lousiiig memlo'er v v 'J'HN Fl OGONNGR'E Copies of this patent may be obiainedefonxecentmeachybmaddressingrgthe Commissioner of Patents, f

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